Williams has extended its engine partnership with Mercedes until the end of the 2025 Formula One season.
The English team moved to Mercedes power ahead of the 2014 season and enjoyed a resurgence in the first two years of its partnership. The original deal ran until the end of 2020 -- the extension was confirmed on Friday.
Williams is in the middle of a frustrating season at the bottom of the championship but Claire Williams, deputy team boss of her family team, is confident Mercedes is the best partnership for the team's long-term aspirations of returning to former glory.